Tile for covering tubes.



M, W. SEWALL.& D. SL JAGOBUS.

TILE FDR lGGVERING TUBES. yAPPLICATION FILED JANHL, 19'11.

,Petentea Feb. 2s, 1915.

MINOTT W. sEWALL, -oE NEW YORK, N. Y., AND DAVID s. JAcoBUs, or JERSEY CITY, NEW JERSEY, AssIGNoEs To THE BAEcocK-& Wincor; coMPANY, 0E BAYONNE, NEW JERSEY, A CORPORATION or* NEW JERSEY.

TILE FOR COVERING TUBES,

messia.

Specication of Letters Patent.

Original application led February 7, 1910, Serial No. 542,417. Divided and this application led January 41, 1911. Serial No. 600,816.

Athe'l'atter a resident of Jersey City, in the county 'of Hudson and State of New Jersey, have invented certain new and useful Improvements in Tiles for C overing Tubes, of `which the following'is a specification.

The present invention relates to a tile or brick designed more particularly as a cov'- ering for tubes of a water tube boiler, which may' be readily placed in position or re-I moved therefrom without disturbing any other tile or brick, and to means for. supporting thetiles on a tube.A

."The present application is a vdivision of our application'Seri'al Number 542,417, filed4 February 7 1910, for a water tube boiler.

The invention will be understood by.l reference to theaccompanying drawings in whichl Figure 1 is a top view of a portion of a roof of a boiler furnace to show the application of the invention as a tube covering; Fig. 2 a section on the plane of the line 2.--2 of Fig. l on an enlarged scale; Fig. 3 a section on the plane of the line 3 3 of Fig. 1; and Fig. 4 a modification of the form shown in Fig. 2.

Similar 'reference numerals indicate simiqlar'parts in the several views.

In the use selected for illustration, the

roof l is formed of tiles shown in Fig. 3,.

and at the left-hand end of Fig. 1. These tiles have a lower face 2'struck on an arc, the center of which is 4in a vertical line 3 passing through the center of the corresponding tube Il, the center being such that the intersection of the arcs of two adjacent tiles will be above the horizontal center line.

4center gives such a form to the tile that when it is rotated upwardly about the tube center the tile will immediately free itself from the adjacent tile and so permit of its rotation through a suflicient arc to remove it 4from its place without disturbing any other portion of the roof. 'Ihese tiles of W. SEWAEL when supportedl on the tubes 4, break jolnt, as shown in Fig. 1, so that the removal of -one tile' does not permit` lts companion to fall. A clearance is provided by cutting away the upper edge of the tile at 6 to permit of the rotation of the tile a sufficient distance to effect its removal.

The tile shown in Fig. 2 and at the righthand end of the tubes in Fig. 1, is slightly less than semicircular in section to allow a clearance between two tiles of a pair. They may be made of any convenient length. On the inner face is a channel 7 formed by a locking rib 8 extending longitudinally thereof along one edge. Said rib projects inwardly beyond the face of the tile to adapt the latter to the recepti'onof a lug or lugs 9 on a locking member in the form of a loose metal plate 10 resting on the tube. When the metal plate is placed in proper position 'onthe upper side of the tube and thel two tiles forming a pair are assembled with, and supported by, said plate, all are maintained in position for service as shown at the right-hand side of Fig. 1. In removing a tile, it isnecessary totake both of a pair o' at the same time,

Patented Feb. 23, 1915.

In the form shown in 2, the tiles I are eccentric with the tubes by reason of the rib 8 extending beyond the inner face of the tile. In the form shown in Fig. 4, the said ribis -less than the thickness of the tile so that when it engages the lug or lugs 9 the tile will be concentric with the tube.

The invention -is capable of general application to tubes of all kinds where a readily removable cover is necessary. We do not, therefore, confine ourselves to the particular use'illustrated and described.

What we claim and desire to secure by Letters Patent of the United States is l. A tile construction for the purpose described comprising tiles having substantially semi-circular inner faces and a locking rib, a tube, and means on said tube corib, a tube, and a separatemember resting on said tube, said' member coperating With the ribs of a pair of said tiles to hold them in place about the tube.

4L. A tile-construction for the purpose described comprising tiles having substantiallysemicircular inner faces and an internal locking rib, a tube, and a separate member resting on said tube, said member having lugs adapted to be engaged by said ribs to hold a pairof said tiles in place, about the tube.

5. A tile construction for the purpose described comprising tiles having substantially semicircular inner faces and a locking rib,

a tube, and a inetal plate resting on said tube, said platehavi-ng projections adapted,

to be engaged by said ribs to, hold a pair of said tiles in place about the tube.

6. Atile construction for the purpose described comprising tiles having substantially semicircular inner faces and a locking rib, a tube, anda separate member resting on said tube, said member'coperating with the ribs of a pair of said tiles to hold them in place about the tube, said tiles being formed with a clearance between their upper edges to permit of the simultaneous removal of the tiles of a given pair.

7. The combination of a tubular supporting girder,.a saddle fitting over said girder and channeled on its upper side, mutually matching blocks of refractory material recessed to embrace the girder and fit the channeled saddle, inclosingI the girder and suspended by the girde'r, and means `to maintain cooling circulation in the tubular girder. 

